I have three green neons in my 29 gallon and 2 blue. They get along very well and shoal together. They look so nice together. When I first saw them labeled as "green neons" I thought it was mislabeled or something but when I brought them home and looked at them they were green, not blue.
Paracheirodon simulans is definatly a naturally occuring fish. Not dyed whatso ever. In my opinion it looks very simular to a neon or cardinal but the red and blue/green stripes are thinner. They are found in some smaller rivers off the Amazon.
i saw them at bridgmere garnden cnetr in the fish section, now as ripples, which is pretty well stocked to my mind, only have gne in small local shops before. and thanx littlie fishie, i could figuer out how to link the pic i had found